Recommendations from friends for movies and TV shows are usually very good, but not with music. My opinion of Spotify, Apple Music and Amazon Music recommendations is much worse. I find that I am better off randomly picking music tracks.
* go to the wikipedia page for an artist or album you like and look for
* reviews and ratings that line up with what you thought: you might find a critic or outlet with similar tastes that can provide new recommendations
* the producer or label: their other works might be similar to what you already like
* (on the artist page) the "associated acts" of the artist: you might like other projects with which the artist is involved
* any influences listed: you might like what the artist liked
* reddit has many music sub-reddits https://www.reddit.com/r/Music/wiki/musicsubreddits
* /mu/ is actually a pretty good 4chan board. The essentials wiki is a good starting point that doesn't require filtering through trolling: https://4chanmusic.fandom.com/wiki/Essential_Charts
https://www.youtube.com/watch?v=Dg4sBFBtLRE
When I craze the music often enough I go and purchase those tracks in bandcamp. This particular music mixer has a ton of content and clearly goes out of their way to sift through a bunch of music in that space they think is worthy to compile into a collection which they do a good job of.
Their mixes are reposted to soundcloud too I think.
Instead, I find albums I already know I like and look for well-written reviews on the album page. Then I click into the reviewer’s profile, see if I like/recognize any of the other stuff they’ve reviewed, and if so, I follow them. Boom, it’s like you’ve found a friend who actually enjoys the same music you do.